Milo Ventimiglia knows one of the biggest secrets of NBC’s “This Is Us”: When and how his fan-favorite character Jack is going to die.

But just because we already know Jack Pearson will suffer an untimely fate, that doesn’t mean the character is going anywhere.

“I do know when you’re going to know, but just wait,” he told TheWrap’s Stuart Brazell. “You may get some teasers as to when, very soon. But I think the thing to know is that Jack’s time with his family is limited. But he’s not going anywhere because Jack and Rebecca are in the past, and reflect very much how they impact the Big Three in the present day. I think it’s safe to say that Jack will be around for the life of the show.”

That doesn’t mean it’s going to be smooth sailing for the Pearsons, of course, on this show known for its shocking twists and turns. Ventimiglia revealed the last 13 episodes of Season 1 are going to be even more of a roller coaster.

“We have another episode coming up, next week… some bombs are dropped,” he previewed. “Then we come back for 13 and I think a lot happens. It’s one of those things where it gets a pace, and then it just moves faster and faster going into that very, very explosive end of Episode 18.”